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LT1768 - 典型应用图例：
LT1768典型应用图例一
LT1768典型应用图例二
LT1768 - 封装图解：
LT1768封装图解一
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LINEAR产品 - LT1768介绍

LT1768 - LT1768是High Power CCFL Controller for Wide Dimming Range and Maximum Lamp Lifetime

LT1768是LINEAR凌力尔特公司的一款LCD / CCD / OLED 偏置产品，LT1768是LT1768是High Power CCFL Controller for Wide Dimming Range and Maximum Lamp Lifetime，本站介绍了LT1768的封装应用图解、特点和优点、功能等，并给出了与LT1768相关的LINEAR元器件型号供参考。

LT1768 - LT1768是High Power CCFL Controller for Wide Dimming Range and Maximum Lamp Lifetime - LCD / CCD / OLED 偏置 - 电源管理 - 凌力尔特

LT1768 - High Power CCFL Controller for Wide Dimming Range and Maximum Lamp Lifetime

LT1768 - High Power CCFL Controller for Wide Dimming Range and Maximum Lamp Lifetime - Linear Technology（凌力尔特）

功能描述
The LT1768 is designed to control single or multiple cold cathode fluorescent lamp (CCFL) displays. A unique Multimode Dimming scheme* combines both linear and PWM control functions to maximize lamp life, efficiency, and dimming range. Accurate maximum and minimum lamp currents can be easily set. The LT1768 can detect and protect against lamp failures and overvoltage start-up conditions. It is designed to provide maximum flexibility with a minimum number of external components.

The LT1768 is a current mode PWM controller with a 1.5A MOSFET driver for high power applications. It contains a 350kHz oscillator, 5V reference, and a current sense comparator with a 100mV threshold. It operates from an 8V to 24V input voltage. The LT1768 also has undervoltage lockout, thermal limit, and a shutdown pin that reduces supply current to 65µA. It is available in a small 16-lead SSOP package.

特点
  • Ultrawide Multimode Dimming™ Range
  • Multiple Lamp Capability
  • Programmable PWM Dimming Range and Frequency
  • Precision Maximum and Minimum Lamp Currents Maximize Lamp Lifetime
  • No Lamp Flicker Under All Supply and Load Conditions
  • Open Lamp Detection and Protection
  • 350kHz Switching Frequency
  • 1.5A MOSFET Gate Driver
  • 100mV Current Sense Threshold
  • 5V Reference Voltage Output
  • The 16-Lead SSOP Package
    • 应用
  • Desktop Flat Panel Displays
  • Multiple Lamp Displays
  • Notebook LCD Displays
  • Point of Sale Terminal Displays
    • 以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
    器件型号 封装 温度 价格 (以 1 ~ 99 片为批量) 价格 (以 1000 片为批量)
    LT1768CGN SSOP-16 C $4.70 $4.10
    LT1768CGN#PBF SSOP-16 C $4.70 $4.10
    LT1768CGN#TR SSOP-16 C $4.16
    LT1768CGN#TRPBF SSOP-16 C $4.16
    LT1768IGN SSOP-16 I $5.10 $4.50
    LT1768IGN#PBF SSOP-16 I $5.10 $4.50
    LT1768IGN#TR SSOP-16 I $4.56
    LT1768IGN#TRPBF SSOP-16 I $4.56
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  • LT5400 - 四个匹配的电阻器
  • LTC6655 - 0.25ppm 噪声、低漂移、精准基准系列
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  • LT3580 - 具 2A 开关、软起动和同步功能的升压/负输出 DC/DC 转换器
  • LT8471 - 具 2A 开关和同步功能的双通道、多拓扑 DC/DC 转换器
  • LT3757 - 升压、反激式、SEPIC 和负输出控制器
  • LT3758 - 高输入电压、升压、反激式、SEPIC 和负输出控制器
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